Before you proceed with the tutorial on how to jailbreak iOS 6 beta 4 with RedSn0w 0.9.13 dev 3, please note that this is a tethered jailbreak solution intended only for developers and it won’t install Cydia on your device. It will only install SSH, so if you know what you’re doing, you can install the .deb packages yourself.

Point to IPSW of iOS 6 beta 3 instead of beta 4. You will then get a pop up saying the iPSW has been identified.

Go back to the first screen and hit “Jailbreak”. Redsn0w will start getting ready tojailbreak.

On the options screen, you’ll notice there is no option to install Cydia, only SSH. Make sure that is selected, and click “Next”.

You will then be prompted to put the device in DFU mode. Redsn0w will walk you though the process, or you can just go ahead and do it, if you know how already.

Redsn0w will then perform the rest of the jailbreak.

Once is is done, hit the “Back” button. Go to “Extras” and click “Just Boot”. You’ll have to follow the same DFU process as before. Once your device boots back up, you’ll be jailbroken on iOS 6 beta 4.